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Finding the Fourth Proportional to 115,956.90, 173,676.15 and 113,364.90

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Solution

The fourth proportional to 115,956.90, 173,676.15 and 113,364.90 is: 169,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,956.90 : 173,676.15 = 113,364.90 : x
  2. Step 2: Convert to fraction form
    115,956.90/173,676.15 = 113,364.90/x
  3. Step 3: Cross multiply
    115,956.90x = 173,676.15 × 113,364.90
  4. Step 4: Simplify right side
    115,956.90x = 19,688,779,377.14
  5. Step 5: Solve for x
    x = 19,688,779,377.14/115,956.90
  6. Step 6: Final answer
    x = 169,793.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.